add static to inner classes that do not refer to outer context

src/magic/ai/MMAB.java

@@ -132,7 +132,7 @@ public class MMAB extends MagicAI {
         return sourceGame.map(bestAchoice.choiceResults);
     }
 
-class MMABWorker {
+static class MMABWorker {
 
     private final boolean CHEAT;
     private final long id;

src/magic/ui/deck/games/DeckGamesJTable.java

@@ -115,7 +115,7 @@ class DeckGamesJTable extends JTable {
         repaint();
     }
 
-    private class MouseHoverListener extends MouseMotionAdapter {
+    private static class MouseHoverListener extends MouseMotionAdapter {
         private int lastMCol = -1;
         private int lastMRow = -1;
         @Override

src/magic/ui/dialog/DecksFilterDialog.java

@@ -163,7 +163,7 @@ public class DecksFilterDialog extends MagicDialog {
         };
     }
 
-    private class DeckSizeFilterPanel extends JPanel {
+    private static class DeckSizeFilterPanel extends JPanel {
 
         // ui components
         private final MigLayout migLayout = new MigLayout();

src/magic/ui/screen/menu/migrate/ImportScreen.java

@@ -209,7 +209,7 @@ public class ImportScreen extends MScreen {
 
     }
 
-    private class ProgressPanel extends JPanel {
+    private static class ProgressPanel extends JPanel {
 
         private int percentageComplete = 0;
 

src/magic/ui/screen/widget/ScreenFooterPanel.java

@@ -18,7 +18,7 @@ import net.miginfocom.swing.MigLayout;
 public class ScreenFooterPanel extends TexturedPanel
         implements IThemeStyle {
 
-    private class ContentPanel extends JPanel {
+    private static class ContentPanel extends JPanel {
         public ContentPanel() {
             setLayout(new MigLayout("insets 0, gap 0"));
             setOpaque(false);

src/magic/ui/screen/widget/ScreenHeaderPanel.java

@@ -15,7 +15,7 @@ import net.miginfocom.swing.MigLayout;
 public class ScreenHeaderPanel extends TexturedPanel
         implements IThemeStyle {
 
-    private class PlaceHolderPanel extends JPanel {
+    private static class PlaceHolderPanel extends JPanel {
         @Override
         public boolean isVisible() {
             return false;

src/magic/ui/widget/card/filter/SearchOperand.java

@@ -11,7 +11,7 @@ public enum SearchOperand {
     EXCLUDE(MyStrings._S3);
 
     // Translatable strings.
-    private class MyStrings {
+    private static class MyStrings {
         static final String _S1 = "Match any";
         static final String _S2 = "Match all";
         static final String _S3 = "Exclude";

src/magic/ui/widget/deck/legality/CardsLegalityPanel.java

@@ -211,7 +211,7 @@ public class CardsLegalityPanel extends JPanel {
         }
     }
 
-    private class HideCellFocusRenderer extends DefaultTableCellRenderer {
+    private static class HideCellFocusRenderer extends DefaultTableCellRenderer {
         @Override
         public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
             super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

src/magic/ui/widget/deck/legality/FormatsLegalityPanel.java

@@ -108,7 +108,7 @@ public class FormatsLegalityPanel extends JPanel {
         return lst.toArray(new DeckLegalityInfo[0]);
     }
 
-    private class FormatsListCellRenderer extends DefaultListCellRenderer {
+    private static class FormatsListCellRenderer extends DefaultListCellRenderer {
 
         private final ImageIcon LEGAL_ICON = MagicImages.getIcon(MagicIcon.LEGAL);
         private final ImageIcon ILLEGAL_ICON = MagicImages.getIcon(MagicIcon.ILLEGAL);
@@ -148,7 +148,7 @@ public class FormatsLegalityPanel extends JPanel {
 
     }
 
-    private class DeckLegalityInfo {
+    private static class DeckLegalityInfo {
 
         private final MagicFormat magicFormat;
         private boolean isDeckLegal = true;

src/magic/ui/widget/duel/sidebar/DuelSideBarPanel.java

@@ -167,7 +167,7 @@ public class DuelSideBarPanel extends JPanel implements IPlayerZoneListener {
         return gameStatusPanel.getTurnPanelLayout(container);
     }
 
-    private class LayoutSlot {
+    private static class LayoutSlot {
 
         private JComponent component;
         private String constraints;

src/magic/ui/widget/duel/sidebar/LogViewer.java

@@ -79,7 +79,7 @@ class LogViewer extends TexturedPanel {
         GeneralConfig.getInstance().save();
     }
 
-    private class LogScrollPane extends JScrollPane {
+    private static class LogScrollPane extends JScrollPane {
 
         private static final int INCREMENT = 108;
 

src/magic/ui/widget/duel/sidebar/StackViewer.java

@@ -95,7 +95,7 @@ public class StackViewer extends TexturedPanel
      * correctly based on whether the vertical scrollbar is visible or not.
      */
     @SuppressWarnings("serial")
-    private final class ScrollablePanel extends JPanel implements Scrollable {
+    private static final class ScrollablePanel extends JPanel implements Scrollable {
 
         @Override
         public Dimension getPreferredScrollableViewportSize() {

src/magic/ui/widget/firemind/FiremindWorkerPanel.java

@@ -191,7 +191,7 @@ public class FiremindWorkerPanel extends JPanel {
         firePropertyChange("isRunning", oldState, newValue);
     }
 
-    private class FiremindWorkerRunner extends SwingWorker<String, Void> {
+    private static class FiremindWorkerRunner extends SwingWorker<String, Void> {
         @Override
         protected String doInBackground() throws Exception {
             // restarts after 25 games